Protosol 250ml – care product

Protosol is a treatment preparation for freshwater aquarium keepers who need to deal with flagellate infections, bacterial problems or mould in the tank. Its active ingredient is a metronidazole derivative, and the product is aimed mainly at hexamitosis (hole-in-the-head) and bloat in African cichlids.

Why it matters

• Active ingredient: a metronidazole derivative with antiprotozoal, antibacterial and antifungal action, acting selectively on flagellates, bacteria and moulds.
• Systemic action limited to the water: according to the manufacturer, the preparation does not penetrate fish tissue, which is the stated basis for limiting side effects.
• Protection against secondary infections: it is described as helping to prevent secondary bacterial infections in weakened fish.
• Biofilter compatibility: the manufacturer states it is safe for beneficial nitrifying microflora, though the protocol still requires removing bacterial and carbon media during treatment.

Specifications

• Product name: Protosol 250 ml, treatment preparation
• Brand: Zoolek
• Symbol: ZOOLEK PROTOSOL 250ML
• EAN: 5907527405187
• Active ingredient: metronidazole (derivative)
• Weight: 0.22 kg
• Dosage: 20 ml per 100–200 l of water, for 3–4 days

What it works with

Protosol is designed for treating aquariums with flagellate, bacterial or mould problems, in particular African cichlid tanks affected by hexamitosis or bloat. The dose is scaled to tank volume (20 ml per 100–200 l), and the manufacturer notes that the dose may be increased for large, well-fed fish. During the course, bacterial and activated carbon filter media should be removed and aeration strengthened; after the course, about one third of the water should be replaced and carbon filtration applied (the manufacturer suggests Aquafix C).